Pride says, "I know that already."
Humility says, "Even if I know it already, it's always good to be reminded again."

Humility never minds reminders.
Pride chafes against reminders and thinks, "what do they think I am? A novice? Stupid? Clueless?"

I always know when I'm working with someone in the church or coaching someone outside the church who is simply not ready for my investment into their life. When I try to teach them something they quickly pipe up and say things like, "Yeah, I know."
"I already know that."
"I've been told that before."
"This is old news to me."

Usually with such a person I know nothing I say or do is going to make any difference until they drop their pride.

Do I ever have someone invest in my life who tells me something I already heard before? Of course. What is my thought on that when it's happening? "God must want me to hear this again for some reason. Thank you Lord, for this reminder, and thank you for putting the person in my life who is taking time to invest in me."

"Pride goes before destruction, a haughty spirit before a fall." Proverbs 16:18